30 files declare their use of EventDispatcherInterface in Zircon Profile 8

Application.php in vendor/symfony/console/Application.php

Config.php in core/lib/Drupal/Core/Config/Config.php

Contains \Drupal\Core\Config\Config.

ConfigFactory.php in core/lib/Drupal/Core/Config/ConfigFactory.php

Contains \Drupal\Core\Config\ConfigFactory.

ConfigImporter.php in core/lib/Drupal/Core/Config/ConfigImporter.php

Contains \Drupal\Core\Config\ConfigImporter.

ConfigInstaller.php in core/lib/Drupal/Core/Config/ConfigInstaller.php

Contains \Drupal\Core\Config\ConfigInstaller.

ConfigManager.php in core/lib/Drupal/Core/Config/ConfigManager.php

Contains \Drupal\Core\Config\ConfigManager.

ConfigSingleImportForm.php in core/modules/config/src/Form/ConfigSingleImportForm.php

Contains \Drupal\config\Form\ConfigSingleImportForm.

ConfigSync.php in core/modules/config/src/Form/ConfigSync.php

Contains \Drupal\config\Form\ConfigSync.

ContainerAwareEventDispatcher.php in core/lib/Drupal/Component/EventDispatcher/ContainerAwareEventDispatcher.php

Contains \Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher.

ContainerAwareHttpKernel.php in vendor/symfony/http-kernel/DependencyInjection/ContainerAwareHttpKernel.php

DynamicRouter.php in vendor/symfony-cmf/routing/DynamicRouter.php

EntityTypeListener.php in core/lib/Drupal/Core/Entity/EntityTypeListener.php

Contains \Drupal\Core\Entity\EntityTypeListener.

EventDataCollector.php in vendor/symfony/http-kernel/DataCollector/EventDataCollector.php

FieldStorageDefinitionListener.php in core/lib/Drupal/Core/Field/FieldStorageDefinitionListener.php

Contains \Drupal\Core\Field\FieldStorageDefinitionListener.

FormBuilder.php in core/lib/Drupal/Core/Form/FormBuilder.php

Contains \Drupal\Core\Form\FormBuilder.

GotoAction.php in core/modules/action/src/Plugin/Action/GotoAction.php

Contains \Drupal\action\Plugin\Action\GotoAction.

HtmlRenderer.php in core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php

Contains \Drupal\Core\Render\MainContent\HtmlRenderer.

HttpKernel.php in vendor/symfony/http-kernel/HttpKernel.php

InlineFragmentRenderer.php in vendor/symfony/http-kernel/Fragment/InlineFragmentRenderer.php

LanguageConfigFactoryOverride.php in core/modules/language/src/Config/LanguageConfigFactoryOverride.php

Contains \Drupal\language\Config\LanguageConfigFactoryOverride.

LanguageConfigOverride.php in core/modules/language/src/Config/LanguageConfigOverride.php

Contains \Drupal\language\Config\LanguageConfigOverride.

MigrateExecutable.php in core/modules/migrate/src/MigrateExecutable.php

Contains \Drupal\migrate\MigrateExecutable.

RouteBuilder.php in core/lib/Drupal/Core/Routing/RouteBuilder.php

Contains \Drupal\Core\Routing\RouteBuilder.

Sql.php in core/modules/migrate/src/Plugin/migrate/id_map/Sql.php

Contains \Drupal\migrate\Plugin\migrate\id_map\Sql.

TestContainerDerivativeDiscovery.php in core/tests/Drupal/Tests/Core/Plugin/Discovery/TestContainerDerivativeDiscovery.php

Contains \Drupal\Tests\Core\Plugin\Discovery\TestContainerDerivativeDiscovery.

TestSqlIdMap.php in core/modules/migrate/tests/src/Unit/TestSqlIdMap.php

Contains \Drupal\Tests\migrate\Unit\TestSqlIdMap.

TraceableEventDispatcher.php in vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcher.php

TraceableEventDispatcherInterface.php in vendor/symfony/event-dispatcher/Debug/TraceableEventDispatcherInterface.php

TraceableEventDispatcherTest.php in vendor/symfony/event-dispatcher/Tests/Debug/TraceableEventDispatcherTest.php

WrappedListener.php in vendor/symfony/event-dispatcher/Debug/WrappedListener.php